제출 #357669

#제출 시각아이디문제언어결과실행 시간메모리
357669mario05092929Colors (BOI20_colors)C++11
0 / 100
1 ms384 KiB
#include <bits/stdc++.h> #define x first #define y second #define pb push_back #define all(v) v.begin(),v.end() #pragma gcc optimize("O3") #pragma gcc optimize("Ofast") #pragma gcc optimize("unroll-loops") using namespace std; const int INF = 1e9; const int TMX = 1 << 18; const long long llINF = 1e16; const long long mod = 1e9+7; const long long hashmod = 100003; const int MAXN = 100000; const int MAXM = 1000000; typedef long long ll; typedef long double ld; typedef pair <int,int> pi; typedef pair <ll,ll> pl; typedef vector <int> vec; typedef vector <pi> vecpi; typedef long long ll; int n,x,l,r; int main() { ios_base::sync_with_stdio(false); cin.tie(0); cin >> n; int val; cout << "? 1" << endl; cin >> val; cout << "? " << (n+1)/2 << endl; cin >> val; if(val) { l = 3, r = (n+1)/2-1; int x = 2; for(int len = (n+1)/2-2;len >= 1;len--) { cout << "? " << x << endl; cin >> val; if(!val) { cout << "= " << len+1 << endl; return 0; } if(x-1 == r) x = l++; else x = r--; } cout << "= 1" << endl; return 0; } else { cout << "? " << n << endl; cin >> val; if(val) { cout << "= " << n-((n+1)/2) << endl; return 0; } l = 3, r = n-1; int x = 2; for(int len = n-2;len >= n-((n+1)/2);len--) { cout << "? " << x << endl; cin >> val; if(!val) { cout << "= " << len+1 << endl; return 0; } if(x-1 == r) x = l++; else x = r--; } cout << "= " << n-((n+1)/2) << endl; return 0; } }

컴파일 시 표준 에러 (stderr) 메시지

Colors.cpp:6: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
    6 | #pragma gcc optimize("O3")
      | 
Colors.cpp:7: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
    7 | #pragma gcc optimize("Ofast")
      | 
Colors.cpp:8: warning: ignoring #pragma gcc optimize [-Wunknown-pragmas]
    8 | #pragma gcc optimize("unroll-loops")
      |
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